For 20 years, says Peking University politics professor Zhang Jian, “there has been a basic consensus in the party … that factional struggles should never rock the ship. But the way the scandal unfolded and was managed may signal the beginning of the loss of that consensus.”

Bo, until recently a rising star in the political firmament here who clearly had his sights set on one of the nine top posts in the ruling Communist Party, was replaced as party secretary of Chongqing, a mega-city in southwestern China, the official news agency Xinhua announced Thursday. The sacking appeared to put an end to his political ambitions.

Whether he went to the consulate seeking asylum or for another purpose has not been disclosed. But rather than blacking out all news of the scandal, local and national officials fed it, announcing first that Mr. Wang was undergoing “vacation style medical treatment” and then revealing that Wang had spent a whole night at the consulate and was under investigation.

To the eyes of some observers the revelations on Weibo, China’s most popular social media platform, bore the hallmarks of an anti-Bo campaign by his rivals. “Political factions can use Weibo to create and manipulate public opinion,” points out Wu Qiang, who teaches politics at Tsinghua University in Beijing. “Any user can be a deep throat.”

“The top authorities had the option of deleting all the Weibo posts and ordering the media not to mention Wang Lijun,” adds Professor Zhang. “The fact that they did not means that maybe, as competition has got fierce among the top leadership, there has been a loss of consensus” among them.

Bo Xilai courted controversy

Bo, a member of the 25-strong Politburo of the Communist Party, courted controversy with both the substance of his rule in Chongqing and his personal style.

He made his name with a harsh crackdown on organized crime in Chongqing (entrusted to police chief Wang,) well publicized welfare policies benefiting the poor, a predilection for more state intervention in the local economy and a campaign stirring nostalgia for the days of Mao Zedong with organized sing-alongs of “red songs” from the Mao era.

This approach, which became known as the “Chongqing model” of development, appeared initially to enjoy Beijing’s backing; Chongqing is under direct central government jurisdiction and several top leaders visited Bo’s city in a show of support.

But over time, the widely popular anti-mafia campaign came under closer scrutiny, which prompted charges that it had largely been camouflage for an attack on private businessmen.

“The principal and basic target of the anti-mafia campaign in Chongqing was to weaken and seize private businesses and entrepreneurs and use the profits from this to strengthen state-owned companies and the local budget,” wrote Tong Zhiwei, a professor at Shanghai’s East China University of Political Science and Law, in a report he recently submitted to the central government.

“The most prominent result of the campaign was to strip large numbers of entrepreneurs of their fortunes, their homes, and their families,” he added, in a damning indictment of Bo’s policy.

Victims have claimed they were tortured, and lawyers complained that courts trying suspects ignored legal procedure. Bo’s approach to “strengthening social control came to be seen as authoritarian,” according to Professor Wu.

Bo Xilai's style

At the same time, Bo’s brash and flamboyant political style, often branded populist and overtly ambitious, set him apart from his peers at the top of the party who have all made a virtue of caution and conservatism.

“His personal style, the way he stood out, was the main reason for his failure,” says Zhang. “That really angered a lot of his potential colleagues because nobody knew what he would do if he got onto the Standing Committee of the Politburo” when new members are chosen at the next party congress this autumn.

“What if he launched an anticorruption campaign against them?” his peers must have been wondering, according to Zhang. “He is such an unpredictable figure, and unpredictability is loathed by everyone except him” at the top of the party.

Bo’s dismissal, though, could complicate the succession struggle, as different factions promote their candidates for the next Standing Committee. If Bo had indeed been tapped for one of the seven seats up for grabs, as many believe, “there is now a vacancy,” Zhang points out. “There will be a lot of speculation, campaigning, and bargaining. The struggle at the top will get fiercer than before.”